Analysis of monosaccharides and amino acids in biosamples

Background

The amounts and ratios of different carbohydrates and amino acids are important by many aspects in nature and when utilizing natural resources. For example, the carbohydrate composition governs the properties and quality of the wood fibres after pulping in paper production. Moreover, this composition can be of importance regarding the attraction of herbivores (noxious insects) to specific plants like trees or flowers, as can the amino acid composition. This could in turn affect the degree of wood damage or flower pollination and thus wood, seed and/or fruit production.

Another example is the ratio of different sugars in food products like honey. The time of year, weather and habitat could change the constitution, colour and taste of the honey tremendously, depending on the sugar ratios.

Thus, there is a significant need for analysis of these substances in samples of widely varying characteristics.

Within the group of Analytical chemistry, KTH, several methods for analysis of monosaccharides and/or amino acids have been developed. Using these, studies involving different types of pulp and plant samples have already been performed. Nonetheless, there are innumerable projects of high interest related to this topic that are suitable for student thesis work.

Examples of diploma works

  • Analysis of monosaccharide/amino acid composition in different trees and correlation of this with herbivore attraction (performed in collaboration with Anna-Karin Borg-Karlson, Ecological chemistry, KTH).
  • Analysis of monosaccharide/amino acid composition in nectar from flowers in relation to species and variants (performed in collaboration with Anna-Karin Borg-Karlson, Ecological chemistry, KTH).
  • Development of methods and complete analytical schemes for determination of monosaccharides and amino acids in different food.

Contact

Åsa Emmer

aae@kth.se

08-7906407

Page responsible:Kenneth Carlsson
Belongs to: Department of Chemistry
Last changed: May 03, 2013